c-- ccc ccn cco ccp cn- cnc cnn cno cnp cny co- coc con coo cop coy cpc cpn cpo cpp cyc cyn cyo cyp ncc ncn nco ncp nnc nnn nno nnp no- noc non noo nop noy npc npn npo npp nyc nyn nyo nyp nyy oc- occ ocn oco ocp on- onc onn ono onp ony oo- ooc oon ooo oop op- opc opn opo opp opy oyo p-p pcc pcn pco pcp pn- pnc pnn pno pnp pny poc pon poo pop poy ppc ppn ppo ppp py- pyc pyn pyo ycc yco ycp ycy ynn ynp yny yoc yon yoo yop yoy ypo yyc yyy